我试图用django-channels实现一个竞价模块。基本上我会广播我从客户端收到的任何消息，我的消费者部分如以下代码片段所示：

class BidderConsumer(AsyncJsonWebsocketConsumer):

    async def connect(self):
        print("Connected")
        await self.accept()
        # Add to group
        self.channel_layer.group_add("bidding", self.channel_name)
        # Add channel to group
        await self.send_json({"msg_type": "connected"})

    async def receive_json(self, content, **kwargs):
        price = int(content.get("price"))
        item_id = int(content.get("item_id"))
        print("receive price ", price)
        print("receive item_id ", item_id)
        if not price or not item_id:
            await self.send_json({"error": "invalid argument"})

        item = await get_item(item_id)
        # Update bidding price
        if price > item.price:
            item.price = price
            await save_item(item)
            # Broadcast new bidding price
            print("performing group send")
            await self.channel_layer.group_send(
                "bidding",
                {
                    "type": "update.price"
                    "price": price,
                    "item_id": item_id
                }
            )

    async def update_price(self, event):
        print("sending new price")
        await self.send_json({
            "msg_type": "update",
            "item_id": event["item_id"],
            "price": event["price"],
        })

但是当我尝试从浏览器更新价格时，消费者可以收到来自浏览器的消息，但无法成功调用update_price函数。（sending new price从未打印）：

receive price  701
receive item_id  2
performing group send

我只是遵循这个例子：https://github.com/andrewgodwin/channels-examples/tree/master/multichat
任何建议将不胜感激！